/Engine/Source/Runtime/Engine/Classes/Engine/MapBuildDataRegistry.h
[FPrecomputedVolumetricLightmapData](API\Runtime\Engine\FPrecomputedVolumetricLightmapDa-) * GetLevelPrecomputedVolumetricLightmapBuildData ( [FGuid](API\Runtime\Core\Misc\FGuid) LevelId )